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17 December 2020 : Database Analysis

Identification of Potential Biomarkers of Prognosis-Related Long Non-Coding RNA (lncRNA) in Pediatric Rhabdoid Tumor of the Kidney Based on ceRNA Networks

Xiongwei Wu1ABCEF, Jie Liu1BCD, Chengzhan Zhu2DF, Mingdi Ma1BF, Xin Chen1BCF, Yusheng Liu1BF, Nan Xia2BDE, Qian Dong12CDF*

DOI: 10.12659/MSM.927725

Med Sci Monit 2020; 26:e927725

Abstract

BACKGROUND: Long non-coding RNA (lncRNA) can act as competing endogenous RNA (ceRNA) during tumor development. However, no study has elucidated the ceRNA network in pediatric rhabdoid tumor of the kidney (RTK) and its prognostic-related lncRNAs. The goal of the present study was to identify potential biomarkers of prognostic-related lncRNAs.

MATERIAL AND METHODS: RNA sequencing and clinical data were procured from the TARGET database. The “EdgeR” package was used to obtain differentially expressed lncRNA (DElncRNA), differentially expressed messenger RNAs (DEmRNA), and differentially expressed microRNAs (DEmiRNA). Cytoscape software was used to construct a ceRNA network. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis were conducted on the ceRNA network-related DEmRNA. The Kaplan-Meier method was used for predicting survival with ceRNA network-related DElncRNA. Univariate and multivariate Cox analyses were used to identify prognosis-related lncRNAs in the ceRNA network, and an RTK prognostic signature was constructed.

RESULTS: We identified 1109 DElncRNAs, 215 DEmiRNAs, and 3436 DEmRNAs; and 107 DElncRNAs, 21 DEmiRNAs, and 74 DEmRNAs were included in the ceRNA regulatory network. GO enrichment analysis and KEGG pathway enrichment indicated that the DEmRNAs were mainly related to the regulation of phospholipase C activity and the MAPK signaling pathway. Survival analysis showed that 9 of 107 DElncRNAs were correlated with prognosis (P<0.05). Univariate and multivariate Cox analysis identified 4 DElncRNAs (HNF1A-AS1, TPTEP1, SNHG6, and ZNF503-AS2) to establish a predictive model and can be used as independent prognostic biomarkers.

CONCLUSIONS: We constructed a ceRNA network that reveals potential lncRNA biomarkers for pediatric RTK.

Keywords: Biological Markers, Pediatrics, Rhabdoid Tumor

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750